@mixin flex-center {
	display: flex;
	align-items: center;
	justify-content: center;
}
@mixin flex-between {
	display: flex;
	align-items: center;
	justify-content: space-between;
}
@mixin overLine($i: 1) {
	overflow: hidden;
	word-break: break-all;
	text-overflow: ellipsis;
	-webkit-line-clamp: $i;
	display: -webkit-box; // 弹性伸缩盒
	-webkit-box-orient: vertical; // 设置伸缩盒子元素排列方式
}